在十五岁的游戏中完成move（）的目的 [英] Purpose of completing move() in game of fifteen

问题描述

我应该在fif.c中完成一个move（）函数，这个程序的目标是实现Game of Fifteen。我只是看不到move（）函数本身在程序中使用的位置和方式。



我尝试了什么： < br $>

I am supposed to complete a move() function in fifteen.c, a program with the goal of implementing Game of Fifteen. I just don't see where/how the move() function itself is used in the program.

What I have tried:

int main(int argc, string argv[])
{
    // ensure proper usage
    if (argc != 2)
    {
        printf("Usage: fifteen d\n");
        return 1;
    }

    // ensure valid dimensions
    d = atoi(argv[1]);
    if (d < DIM_MIN || d > DIM_MAX)
    {
        printf("Board must be between %i x %i and %i x %i, inclusive.\n",
            DIM_MIN, DIM_MIN, DIM_MAX, DIM_MAX);
        return 2;
    }

    // open log
    FILE* file = fopen("log.txt", "w");
    if (file == NULL)
    {
        return 3;
    }

    // greet user with instructions
    greet();

    // initialize the board
    init();

    // accept moves until game is won
    while (true)
    {
        // clear the screen
        clear();

        // draw the current state of the board
        draw();

        // log the current state of the board (for testing)
        for (int i = 0; i < d; i++)
        {
            for (int j = 0; j < d; j++)
            {
                fprintf(file, "%i", board[i][j]);
                if (j < d - 1)
                {
                    fprintf(file, "|");
                }
            }
            fprintf(file, "\n");
        }
        fflush(file);

        // check for win
        if (won())
        {
            printf("ftw!\n");
            break;
        }

        // prompt for move
        printf("Tile to move: ");
        int tile = GetInt();
        
        // quit if user inputs 0 (for testing)
        if (tile == 0)
        {
            break;
        }

        // log move (for testing)
        fprintf(file, "%i\n", tile);
        fflush(file);

        // move if possible, else report illegality
        if (!move(tile))
        {
            printf("\nIllegal move.\n");
            usleep(500000);
        }

        // sleep thread for animation's sake
        usleep(500000);
    }
    
    // close log
    fclose(file);

    // success
    return 0;
}

----



我的任务：

----

My Task:

 * If tile borders empty space, moves tile and returns true, else
 * returns false. 
 */
bool move(int tile)
{
    // TODO
    return false;
}

非常感谢，

Thanks a lot,

推荐答案

你更好看你的代码更清晰，因为它是：

You better look sharper at your code because it goes:

int tile = GetInt();

// quit if user inputs 0 (for testing)
if (tile == 0)
{
    break;
}

// log move (for testing)
fprintf(file, "%i\n", tile);
fflush(file);

// move if possible, else report illegality
if (!move(tile))
{
    printf("\nIllegal move.\n");
    usleep(500000);
}

有一个调用移动功能。如果 int tile 的移动有效，则此函数应返回true。我猜这个值应该由一些用户输入提取。



我理解你的代码片段，移动功能也应该在屏幕上绘制。如果不清楚，你最好问一下代码的作者（以及你的家庭作业）。

There is a call of the move function. This function should return true, if the move for the int tile is valid. I guess the value should be fetched by some user input.

As I understand your code fragment the move function should also draw on the screen. You better ask the author of the code (and your home work) if something is unclear.

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